In some cases, msxml4.dll errors could indicate aregistryproblem, a virus or malware issue, or even ahardwarefailure.
How to Fix Msxml4.dll Errors
Do not download msxml4.dll from a “DLL download” website.
There are many reasons whyit’s a bad idea to download DLL filesfrom sites like that.
Restore msxml4.dll from the Recycle Bin.
The easiest possible cause of a “missing” msxml4.dll file is that you’ve mistakenly deleted it.
Download and install MSXML 4.0 SP3 from Microsoft.
This is the source of the DLL file and should be the only place you download msxml4.dll.
MSXML 6.0, for example, though newer than v4.0, is necessarily if you’re gettingerrors about msxml6.dll.
Reinstall the program that uses the msxml4.dll file.
MSXML will put the msxml4.dll file in aC:\Windows\subfolder.
In other words, don’t follow this step without first trying Step 2.
Run a virus/malware scan of your entire system.
Use System Restore to undo recent system changes.
Update the drivers for hardware devicesthat might be related to msxml4.dll.
This file may or may not be related to video cardsthis was just an example.
The key here is to pay very close attention to the context of the error and troubleshoot accordingly.
fire off the sfc/scannow System File Checker commandto replace a missing or corrupt copy of the msxml4.dll file.
Since this DLL is a Microsoft file, theSystem File Checkertool might restore it.
Install any available Windows updates.
Manyservice packsand otherpatchesreplace or update some of the hundreds of Microsoft distributed DLL files on your setup.
The msxml4.dll file might be included in one of those updates.
Test your memoryand thentest your hard drive.
If the hardware fails any of your tests,replace the memoryorreplace the hard driveas soon as possible.
Repair your installation of Windows.
Use a free registry cleanerto repair msxml4.dll related issues in the registry.
Perform a clean installation of Windows.
This will erase everything from thehard driveand install a fresh copy of Windows.
If none of the steps above correct the msxml4.dll error, this should be your next course of action.
All the information on your hard drive will be erased during this step.
Troubleshoot for a hardware problemif any msxml4.dll errors persist.
After a clean install of Windows, your DLL problem can only be hardware related.
The context of the error is an important piece of information that will be helpful while solving the problem.
